Bronze follis, 18mm, 2.04gm, issued AD 741-775. Constantinople mint.
Obv: Facing busts of Constantine V and Leo V, cross above.
Rev: Facing bust of Leo III with large M between X and N beneath.
References: Sear 1556.
Constantine V was the son of the emperor Leo III, in AD 720, at the age of 2, he was associated with his father as junior emperor. When his father died in 741 he became sole emperor. Possibly from having had a long apprenticeship, Constantine proved to be a capable administrator and successful general (particularly against the Bulgars) and reigned for over 30 years. His son Leo IV succeeded him..